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v3.3.1.900

Subordinated Debt (Details Textual) - USD ($) |  | 12 Months Ended |
--- | --- | --- | ---
Jun. 28, 2013 | Dec. 31, 2015 | Oct. 20, 2015
Debt Instrument [Line Items] |  |  |
Warrants (in shares) | 48,750 |  |
Exercise price (in shares) | $ 19.33 |  |
Warrant exercise price description |  | The warrant became exercisable on June 28, 2014, and, unless previously exercised, will expire on June 28, 2021. The Company has the right to force an exercise of the warrant after the debenture has been repaid in full if the 20-day volume-weighted average price of a share of its common stock exceeds $30.00. |
Weighted average share price period (in days) | 20 days |  |
Weighted average price (in dollars per share) | $ 30.00 |  |
Fair value of warrant (in dollars per share) | $ 255,000 |  |
Risk-free interest date (as a percent) | 0.66% |  |
Expected dividend yield (as a percent) | 1.19% |  |
Expected volatility (as a percent) | 34.00% |  |
Expected term (in years) | 3 years |  |
8% Debenture Due 2021 | Subordinated Debt |  |  |
Debt Instrument [Line Items] |  |  |
Principal amount | $ 3,000,000 |  |
Annual rate (as a percent) | 8.00% |  |
Maturity date | Jun. 28, 2021 |  |
Maturity date range, start | Jun. 28, 2016 |  |
6.4375% Notes Due 2025 | Subordinated Debt |  |  |
Debt Instrument [Line Items] |  |  |
Principal amount |  |  | $ 10,000,000.0
Annual rate (as a percent) |  |  | 6.4375%

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